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author | Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-05 21:12:59 +0300 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2020-04-05 21:12:59 +0300 |
commit | d38c07afc356ddebaa3ed8ecb3f553340e05c969 (patch) | |
tree | 04eb76124d4d5af7518e6e513fb86169051d179c /arch/powerpc/kvm | |
parent | 31c0aa87ec8a30b1e9e4cf862905a369560f7705 (diff) | |
parent | c17eb4dca5a353a9dbbb8ad6934fe57af7165e91 (diff) | |
download | linux-d38c07afc356ddebaa3ed8ecb3f553340e05c969.tar.xz |
Merge tag 'powerpc-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Michael Ellerman:
"Slightly late as I had to rebase mid-week to insert a bug fix:
- A large series from Nick for 64-bit to further rework our exception
vectors, and rewrite portions of the syscall entry/exit and
interrupt return in C. The result is much easier to follow code
that is also faster in general.
- Cleanup of our ptrace code to split various parts out that had
become badly intertwined with #ifdefs over the years.
- Changes to our NUMA setup under the PowerVM hypervisor which should
hopefully avoid non-sensical topologies which can lead to warnings
from the workqueue code and other problems.
- MAINTAINERS updates to remove some of our old orphan entries and
update the status of others.
- Quite a few other small changes and fixes all over the map.
Thanks to: Abdul Haleem, afzal mohammed, Alexey Kardashevskiy, Andrew
Donnellan, Aneesh Kumar K.V, Balamuruhan S, Cédric Le Goater, Chen
Zhou, Christophe JAILLET, Christophe Leroy, Christoph Hellwig, Clement
Courbet, Daniel Axtens, David Gibson, Douglas Miller, Fabiano Rosas,
Fangrui Song, Ganesh Goudar, Gautham R. Shenoy, Greg Kroah-Hartman,
Greg Kurz, Gustavo Luiz Duarte, Hari Bathini, Ilie Halip, Jan Kara,
Joe Lawrence, Joe Perches, Kajol Jain, Larry Finger, Laurentiu Tudor,
Leonardo Bras, Libor Pechacek, Madhavan Srinivasan, Mahesh Salgaonkar,
Masahiro Yamada, Masami Hiramatsu, Mauricio Faria de Oliveira, Michael
Neuling, Michal Suchanek, Mike Rapoport, Nageswara R Sastry, Nathan
Chancellor, Nathan Lynch, Naveen N. Rao, Nicholas Piggin, Nick
Desaulniers, Oliver O'Halloran, Po-Hsu Lin, Pratik Rajesh Sampat,
Rasmus Villemoes, Ravi Bangoria, Roman Bolshakov, Sam Bobroff,
Sandipan Das, Santosh S, Sedat Dilek, Segher Boessenkool, Shilpasri G
Bhat, Sourabh Jain, Srikar Dronamraju, Stephen Rothwell, Tyrel
Datwyler, Vaibhav Jain, YueHaibing"
* tag 'powerpc-5.7-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (158 commits)
powerpc: Make setjmp/longjmp signature standard
powerpc/cputable: Remove unnecessary copy of cpu_spec->oprofile_type
powerpc: Suppress .eh_frame generation
powerpc: Drop -fno-dwarf2-cfi-asm
powerpc/32: drop unused ISA_DMA_THRESHOLD
powerpc/powernv: Add documentation for the opal sensor_groups sysfs interfaces
selftests/powerpc: Fix try-run when source tree is not writable
powerpc/vmlinux.lds: Explicitly retain .gnu.hash
powerpc/ptrace: move ptrace_triggered() into hw_breakpoint.c
powerpc/ptrace: create ppc_gethwdinfo()
powerpc/ptrace: create ptrace_get_debugreg()
powerpc/ptrace: split out ADV_DEBUG_REGS related functions.
powerpc/ptrace: move register viewing functions out of ptrace.c
powerpc/ptrace: split out TRANSACTIONAL_MEM related functions.
powerpc/ptrace: split out SPE related functions.
powerpc/ptrace: split out ALTIVEC related functions.
powerpc/ptrace: split out VSX related functions.
powerpc/ptrace: drop PARAMETER_SAVE_AREA_OFFSET
powerpc/ptrace: drop unnecessary #ifdefs CONFIG_PPC64
powerpc/ptrace: remove unused header includes
...
Diffstat (limited to 'arch/powerpc/kvm')
-rw-r--r-- | arch/powerpc/kvm/book3s_64_mmu_hv.c | 5 | ||||
-rw-r--r-- | arch/powerpc/kvm/book3s_64_mmu_radix.c | 5 | ||||
-rw-r--r-- | arch/powerpc/kvm/book3s_hv.c | 9 | ||||
-rw-r--r-- | arch/powerpc/kvm/book3s_hv_rmhandlers.S | 11 | ||||
-rw-r--r-- | arch/powerpc/kvm/book3s_segment.S | 7 | ||||
-rw-r--r-- | arch/powerpc/kvm/timing.c | 17 |
6 files changed, 10 insertions, 44 deletions
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c index 3aecec890d6f..6404df613ea3 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_hv.c +++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c @@ -2133,9 +2133,8 @@ static const struct file_operations debugfs_htab_fops = { void kvmppc_mmu_debugfs_init(struct kvm *kvm) { - kvm->arch.htab_dentry = debugfs_create_file("htab", 0400, - kvm->arch.debugfs_dir, kvm, - &debugfs_htab_fops); + debugfs_create_file("htab", 0400, kvm->arch.debugfs_dir, kvm, + &debugfs_htab_fops); } void kvmppc_mmu_book3s_hv_init(struct kvm_vcpu *vcpu) diff --git a/arch/powerpc/kvm/book3s_64_mmu_radix.c b/arch/powerpc/kvm/book3s_64_mmu_radix.c index 134fbc1f029f..9f050064d2a2 100644 --- a/arch/powerpc/kvm/book3s_64_mmu_radix.c +++ b/arch/powerpc/kvm/book3s_64_mmu_radix.c @@ -1376,9 +1376,8 @@ static const struct file_operations debugfs_radix_fops = { void kvmhv_radix_debugfs_init(struct kvm *kvm) { - kvm->arch.radix_dentry = debugfs_create_file("radix", 0400, - kvm->arch.debugfs_dir, kvm, - &debugfs_radix_fops); + debugfs_create_file("radix", 0400, kvm->arch.debugfs_dir, kvm, + &debugfs_radix_fops); } int kvmppc_radix_init(void) diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c index fa6e4fc7d0e4..93493f0cbfe8 100644 --- a/arch/powerpc/kvm/book3s_hv.c +++ b/arch/powerpc/kvm/book3s_hv.c @@ -2267,14 +2267,9 @@ static void debugfs_vcpu_init(struct kvm_vcpu *vcpu, unsigned int id) struct kvm *kvm = vcpu->kvm; snprintf(buf, sizeof(buf), "vcpu%u", id); - if (IS_ERR_OR_NULL(kvm->arch.debugfs_dir)) - return; vcpu->arch.debugfs_dir = debugfs_create_dir(buf, kvm->arch.debugfs_dir); - if (IS_ERR_OR_NULL(vcpu->arch.debugfs_dir)) - return; - vcpu->arch.debugfs_timings = - debugfs_create_file("timings", 0444, vcpu->arch.debugfs_dir, - vcpu, &debugfs_timings_ops); + debugfs_create_file("timings", 0444, vcpu->arch.debugfs_dir, vcpu, + &debugfs_timings_ops); } #else /* CONFIG_KVM_BOOK3S_HV_EXIT_TIMING */ diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index dbc2fecc37f0..780a499c7114 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -1266,7 +1266,6 @@ kvmppc_interrupt_hv: * R12 = (guest CR << 32) | interrupt vector * R13 = PACA * guest R12 saved in shadow VCPU SCRATCH0 - * guest CTR saved in shadow VCPU SCRATCH1 if RELOCATABLE * guest R13 saved in SPRN_SCRATCH0 */ std r9, HSTATE_SCRATCH2(r13) @@ -1367,12 +1366,7 @@ END_FTR_SECTION_IFSET(CPU_FTR_HAS_PPR) 11: stw r3,VCPU_HEIR(r9) /* these are volatile across C function calls */ -#ifdef CONFIG_RELOCATABLE - ld r3, HSTATE_SCRATCH1(r13) - mtctr r3 -#else mfctr r3 -#endif mfxer r4 std r3, VCPU_CTR(r9) std r4, VCPU_XER(r9) @@ -3258,7 +3252,6 @@ END_FTR_SECTION_IFCLR(CPU_FTR_P9_TM_HV_ASSIST) * r12 is (CR << 32) | vector * r13 points to our PACA * r12 is saved in HSTATE_SCRATCH0(r13) - * ctr is saved in HSTATE_SCRATCH1(r13) if RELOCATABLE * r9 is saved in HSTATE_SCRATCH2(r13) * r13 is saved in HSPRG1 * cfar is saved in HSTATE_CFAR(r13) @@ -3307,11 +3300,7 @@ kvmppc_bad_host_intr: ld r5, HSTATE_CFAR(r13) std r5, ORIG_GPR3(r1) mflr r3 -#ifdef CONFIG_RELOCATABLE - ld r4, HSTATE_SCRATCH1(r13) -#else mfctr r4 -#endif mfxer r5 lbz r6, PACAIRQSOFTMASK(r13) std r3, _LINK(r1) diff --git a/arch/powerpc/kvm/book3s_segment.S b/arch/powerpc/kvm/book3s_segment.S index 0169bab544dd..1f492aa4c8d6 100644 --- a/arch/powerpc/kvm/book3s_segment.S +++ b/arch/powerpc/kvm/book3s_segment.S @@ -167,16 +167,9 @@ kvmppc_interrupt_pr: * R12 = (guest CR << 32) | exit handler id * R13 = PACA * HSTATE.SCRATCH0 = guest R12 - * HSTATE.SCRATCH1 = guest CTR if RELOCATABLE */ #ifdef CONFIG_PPC64 /* Match 32-bit entry */ -#ifdef CONFIG_RELOCATABLE - std r9, HSTATE_SCRATCH2(r13) - ld r9, HSTATE_SCRATCH1(r13) - mtctr r9 - ld r9, HSTATE_SCRATCH2(r13) -#endif rotldi r12, r12, 32 /* Flip R12 halves for stw */ stw r12, HSTATE_SCRATCH1(r13) /* CR is now in the low half */ srdi r12, r12, 32 /* shift trap into low half */ diff --git a/arch/powerpc/kvm/timing.c b/arch/powerpc/kvm/timing.c index bfe4f106cffc..ba56a5cbba97 100644 --- a/arch/powerpc/kvm/timing.c +++ b/arch/powerpc/kvm/timing.c @@ -211,23 +211,14 @@ void kvmppc_create_vcpu_debugfs(struct kvm_vcpu *vcpu, unsigned int id) snprintf(dbg_fname, sizeof(dbg_fname), "vm%u_vcpu%u_timing", current->pid, id); - debugfs_file = debugfs_create_file(dbg_fname, 0666, - kvm_debugfs_dir, vcpu, - &kvmppc_exit_timing_fops); - - if (!debugfs_file) { - printk(KERN_ERR"%s: error creating debugfs file %s\n", - __func__, dbg_fname); - return; - } + debugfs_file = debugfs_create_file(dbg_fname, 0666, kvm_debugfs_dir, + vcpu, &kvmppc_exit_timing_fops); vcpu->arch.debugfs_exit_timing = debugfs_file; } void kvmppc_remove_vcpu_debugfs(struct kvm_vcpu *vcpu) { - if (vcpu->arch.debugfs_exit_timing) { - debugfs_remove(vcpu->arch.debugfs_exit_timing); - vcpu->arch.debugfs_exit_timing = NULL; - } + debugfs_remove(vcpu->arch.debugfs_exit_timing); + vcpu->arch.debugfs_exit_timing = NULL; } |